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JP7010285B2 |
Provided is a method for producing a modified conjugated diene-based rubber, the method comprising: a first step, in which an alkali-metal-containing aromatic compound having, in the molecule, two carbon atoms each directly bonded to bot...
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JP7007275B2 |
A polymer having a hydrophobic polymer chain derived from monomers of farnesene and other optional monomers, such as dienes and vinyl aromatics. The polymer also includes one or more terminal functional groups, such as an amino group, a ...
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JP7004818B2 |
The present invention relates to a modified conjugated diene-based polymer, and more particularly, a modified conjugated diene-based polymer with the following conditions of i) to v) : i) a glass transition temperature: -90°C to - 50°C...
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JP2022013829A |
To provide a film sensor with high reliability and a touch display having the film sensor.A film sensor 1 comprises a substrate 11, a metal nanowire layer 12, an optical adhesive layer 13 and a passivation layer 14. The metal nanowire la...
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JP6998958B2 |
Provided is a chloroprene-based polymer having an industrially applicable sufficient molecular weight and capable of obtaining a vulcanized rubber excellent in durability and fatigue endurance and an adhesive excellent in layer separatio...
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JP6993918B2 |
To provide a method for manufacturing a conjugated diene-based rubber capable of giving a rubber crosslinked product excellent in processability when blending a filler such as silica or the like and excellent in low heat build-up, wet gr...
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JP6993358B2 |
The present invention relates to a process for preparing a branched elastomeric polymer by polymerization of a conjugated diene in the presence of a specific branching agent and a specific stabilizing compound. The branched elastomeric p...
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JP2022001617A |
To provide a conjugated diene polymer composition that can yield a rubber composition having excellent tear strength and wear resistance, and to provide a method for producing the same.Provided is a method for producing a conjugated dien...
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JP2021193157A |
To provide a catalyst for polybutadiene polymerization capable of producing polybutadiene having high linearity, capable of obtaining a rubber composition excellent in crack propagation resistance and rolling resistance.A catalyst for po...
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JP6984609B2 |
Provided is a method for producing a synthetic polyisoprene latex, including a step of mixing a latex of synthetic polyisoprene (A) synthesized by use of a Ziegler type catalyst and a latex of synthetic polyisoprene (B) synthesized by us...
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JP6984610B2 |
Provided is a synthetic polyisoprene latex containing synthetic polyisoprene, wherein the synthetic polyisoprene constituting the synthetic polyisoprene latex includes a low-molecular weight synthetic isoprene chain having a molecular we...
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JP6981431B2 |
This invention provides a method for producing a hydrogenated conjugated diene polymer latex comprising: a hydrogenation step of dissolving or dispersing a hydrogenation catalyst containing a platinum group element in a latex of a conjug...
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JP6976981B2 |
The invention discloses functionalized poly(2,6-dimethyl phenylene oxide oxide) oligomers containing dicyclopentadiene, a method of producing the same and use thereof. The cured products of the functionalized poly(2,6-dimethyl phenylene ...
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JP2021178959A |
To provide an elastomer for use in a tire improved in the tread wear characteristics and the wet skid resistance, and a polymerization initiator used in synthesizing the same.The present invention is directed to a functionalized polymeri...
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JP6968292B2 |
The present invention relates to a modified conjugated diene-based polymer and a rubber composition including the same, wherein the modified conjugated diene-based polymer according to the present invention has a narrow molecular weight ...
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JP2021176934A |
To provide a novel production method for a vinyl polymer that can readily provide a plurality of vinyl polymers that (a) are free from thioester groups and (b) have main chains of different compositions.A method for producing a vinyl pol...
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JP6964178B2 |
The present invention provides a method for preparing a catalyst showing excellent catalyst activity and polymerization reactivity and useful for preparing a conjugated diene-based polymer which has an excellent modification ratio and im...
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JP6964792B2 |
Provided is a latex composition for dip molding. The latex composition for dip molding includes a carboxylic acid-modified nitrile-based copolymer latex and a hydrophobically modified alkali-soluble emulsion thickener, wherein the hydrop...
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JP6964027B2 |
To provide a method for manufacturing a modified conjugated diene rubber capable of providing a rubber crosslinked article high in tensile strength and excellent in low heat generation property and operation stability.There is provided a...
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JP6959979B2 |
A catalytic system based at least on isoprene as preformation monomer, on a metallocene of formula {P(Cp1)(Cp2)Y} and on an organometallic compound as cocatalyst, Y denoting a group comprising a metal atom which is a rare earth metal, Cp...
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JP2021172722A |
To provide a liquid conjugated diene rubber that is added to a vulcanizate to improve the processability during its production, and can improve the balance between the processability and wear resistance of the vulcanizate.A liquid conjug...
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JP6956027B2 |
To provide a method for producing a conjugated diene-based polymer having a less variation with time in the Mooney viscosity of a conjugated diene-based polymer which is being stored, exhibiting less deformation caused by cold flow durin...
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JP6955084B2 |
The present invention relates to a rubber composition having excellent tensile properties and viscoelasticity properties and including a conjugated diene-based polymer. The rubber composition may include a modified conjugated diene-based...
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JP2021167407A |
To provide a conjugated diene-based polymer which, after suppressing cold flowability after molding into a bale, has excellent workability when made into a vulcanizate, and when made into a vulcanizate, has excellent fracture characteris...
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JP2021165356A |
To provide a modified conjugated diene polymer which is excellent in processability when made into a vulcanizate and whose vulcanizate is excellent in abrasion resistance and low hysteresis loss performance.The modified conjugated diene ...
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JP2021165359A |
To provide a conjugated diene-based polymer composition which is excellent in workability in a mixing and kneading step, and has excellent balance among abrasion resistance, fuel saving properties, wet skid resistance and snow performanc...
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JP2021155702A |
To provide a method for producing a branched conjugated diene-based polymer excellent in low fuel consumption performance, abrasion resistance, wet-skid resistance, and fracture strength.A method for producing a branched conjugated diene...
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JP6941665B2 |
Process for the preparation of a diene polymer or a random vinyl arene-diene copolymer comprising anionically (co)polymerising at least one conjugated diene monomer, optionally in the presence of at least one vinyl arene, in the presence...
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JP2021143329A |
To provide a polymerizable liquid crystal composition excellent in solubility in a solvent.A polymerizable liquid crystal composition having at least two kinds of polymerizable liquid crystalline compounds having the same molecular weigh...
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JP6936364B2 |
The present invention relates to novel polymerizable multivinylaminosilanes which are useful as branching agents for synthetic and natural rubber. The compounds of the invention can be used as such in the polymerization of conjugated die...
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JP6925692B2 |
Provided are an anti-reflective film including a low-refractive layer having mechanical properties such as high abrasion resistance and scratch resistance, etc., and excellent optical properties, and a hard coating layer, a polarizing pl...
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JP2021120448A |
To provide a production method for a modified conjugated diene-based polymer that has a high degree of branching and enables the lengths of a main chain and a side chain to be adjusted, and a modified conjugated diene-based polymer that ...
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JP6918134B2 |
A modified conjugated diene-based polymer, and more particularly, a modified conjugated diene-based polymer prepared by continuous polymerization and having remarkable processability, narrow molecular weight distribution and excellent ph...
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JP6918202B2 |
The present invention relates to a modified conjugated diene-based polymer, and more particularly, to a modified conjugated diene-based polymer prepared by continuous polymerization and having a specific polymer structure and molecular w...
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JP6918201B2 |
The present invention relates to a modifier represented by Formula 1, a method for preparing the same, a modified conjugated diene-based polymer including a functional group derived from the modifier and having a high modification ratio,...
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JP6908662B2 |
The present invention provides a modified conjugated diene-based polymer, wherein the Mooney stress-relaxation rate measured at 110°C is 0.45 or less, and the modification percentage is 75% by mass or more.
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JP6901396B2 |
The present invention relates to polymer blend, consisting of (a) 60-96 percent by weight of a high molecular weight elastomeric polymer, (b) 4-35 percent by weight of a low molecular weight aromatic hydrocarbon polymer, and optionally (...
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JP6894426B2 |
A modified conjugated diene polymer satisfying the following conditions (I) to (IV):(I) at least two peaks are observed in a molecular weight distribution curve obtained from measurement by gel permeation chromatography (GPC);(II) when a...
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JP6891574B2 |
To provide a polybutadiene that, when made into a rubber composition, shows excellent properties, such as tensile stress and cracking resistance, and a polybutadiene rubber containing the same, and provide a rubber composition, tire rubb...
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JP6891396B2 |
To provide xanthogen-modified chloroprene rubber that retains basic characteristics of conventional chloroprene rubber and has low loss tangent (tanδ) and high elongation at break.The xanthogen-modified chloroprene rubber has a structur...
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JP6888081B2 |
A modified conjugated diene-based polymer according to the present invention has a weight average molecular weight of 20 × 104or more and 300 × 104or less, has a molecular weight distribution Mw/Mn of 1.6 or more and 4.0 or less, has a...
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JP6879218B2 |
There is provided a method for producing a polymer latex, including a polymerization step of polymerizing a monomer in an organic solvent to thereby obtain a polymer solution of synthetic polyisoprene and/or a styrene-isoprene-styrene bl...
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JP6874809B2 |
The present disclosure provides a rubber composition and a tire which have excellent enduring performance as well as good fuel economy and wet grip performance. The present disclosure relates to a rubber composition containing a hydrogen...
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JP6869333B2 |
A method of preparing a silane-functionalized polymer, the method comprising: preparing a polymerization system including a cis-1,4-polydiene by introducing a lanthanide-based catalyst and a conjugated diene monomer; and adding a hydrosi...
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JP6865298B2 |
The present invention relates to a method for preparing a modification polymerization initiator with a high conversion ratio by minimizing side reactions. According to the method for preparing a modification polymerization initiator, a m...
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JP6860804B2 |
The present invention provides a curable composition that is suitable for performing imprinting and has a high filling rate into a micro-mold in imprinting technology. The curable composition according to the present invention contains a...
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JP6863961B2 |
A tackifying resin includes a farnesene-based polymer having monomeric units derived from a farnesene monomer and one or more optional comonomers selected from the group consisting of dienes, branched mono-olefins, and vinyl aromatics an...
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JP6847975B2 |
The present invention provides a method for preparing a modified and conjugated diene-based polymer, which may prevent processability degradation by restraining the increase of mooney viscosity during post-treatment using steam with high...
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JP2021042389A |
To provide 1,4-polybutadiene rubber compositions useful at low temperatures.MEANS FOR SOLVING THE PROBLEM: The 1,4-polybutadiene incorporated in the compositions comprises a cis content of at least 85 to about 92%, a vinyl content of abo...
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JP6843860B2 |
The invention relates to a process for the preparation of hydroxylated polyolefins by living anionic polymerization of olefin monomers and subsequent functionalization with hydroxyl groups. With the inventive method, a high degree of fun...
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